CN101892912A - Non-contact electronic throttle - Google Patents
Non-contact electronic throttle Download PDFInfo
- Publication number
- CN101892912A CN101892912A CN2010102476743A CN201010247674A CN101892912A CN 101892912 A CN101892912 A CN 101892912A CN 2010102476743 A CN2010102476743 A CN 2010102476743A CN 201010247674 A CN201010247674 A CN 201010247674A CN 101892912 A CN101892912 A CN 101892912A
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- Prior art keywords
- air door
- housing
- gear
- axle
- electronic throttle
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Abstract
The invention discloses a non-contact electronic throttle. The electronic throttle comprises a casing, and a driving motor and air door which are arranged in the casing, wherein the air door is arranged in the casing through an air door shaft; the casing is provided with an angle displacement sensor used for feeding back the position of the air door; the air door shaft is provided with a magnet base corresponding to the angle displacement sensor; the inside of the magnet base is provided with a magnet; and the driving motor is connected with the air door shaft through a gear speed-reducing mechanism. When the non-contact electronic throttle is used, electrical wear can not be caused and the phenomenons of poor contact, signal deviation and the like can not be generated; and the electronic throttle has the advantages of long service life and the like. By designing an idle adjusting screw, the machining accuracies of the air door and the air duct of the casing are reduced, the installation accuracy of the air door in the idle position is reduced and the cost is saved.
Description
Technical field
What the present invention relates to is a kind of electronic throttle, and what be specifically related to is a kind of non-contact electronic throttle, belongs to field of automobile.
Background technique
The sustainable development of national economy needs good environment, and the use of a large amount of Motor Vehicle has produced a lot of poisonous, harmful effulents, so state's IV emission standard requires further to reduce the exhaust emissions of Motor Vehicle.By the air inlet of accurate control motor, make that fuel oil is more abundant, burning completely is to reduce one of exhaust emissions effective ways of Motor Vehicle.
Closure is the critical component of control engine charge.Traditional mechanical type closure is connected on the gas pedal by the wire drawing structure, and the axle of the air door that the driver tramples gas pedal pulling closure is controlled the aperture of air door, reaches the requirement of regulating air inlet.Because the control mode of mechanical type closure because of the restriction of its dynamic characteristic, is difficult to correspondingly make accurately, adjust timely according to the different operating modes of automobile; The control poor effect under special operation conditions such as cold starting, low-load particularly, thus cause the Economy of motor car engine to descend, and the noxious emission amount increases.And electronic throttle has been cancelled traditional gas pedal and has been connected with backguy between the closure air door, adopts the aperture of Electric Machine Control air door.When the driver steps on efp, the efp position transducer is that voltage signal is passed to ECU with its displacement amount signal conversion, ECU by current operating mode of living in is analyzed with logical process after send control signal, control throttle valve drive motor makes motor drive the closure running and reach required aperture according to the given angle of ECU; The current throttle position letter that throttle position sensor on the while throttle body will record feeds back to ECU, by the best closed loop control of feedback control realization to closure.The best aperture that electronic throttle can be determined closure according to driver's demand hope and the various running condition of car load guarantees the power character and the fuel economy of vehicle the best to reduce exhaust emissions.
Existing electronic throttle adopts potentiometer type to realize the output of angle signal mostly, owing to contact between brush, the resistance coating, need very high installation precision, and long-term use causes wearing and tearing and bad connection between brush and the resistance coating, the generation deviation of signal easily.Therefore, need a kind of mechanical system and the mutually non-touching electronic throttle of sensing system, avoid the mechanical wear that is harmful to, reduce installation precision, the working life of raising closure.
The air channel of existing electronic throttle air door, housing all needs very high machining accuracy, and air door is very high in the requirement of idle position installation precision, and domestic existing level of processing is difficult to satisfy, or is difficult to realize large batch of high-precision processing.Therefore need to come the installation of damper, reduce machining accuracy, reduce cost at idle position by special structure.
Summary of the invention
At the deficiency that exists on the prior art, there are not electric wearing and tearing when the objective of the invention is to be to provide a kind of work, can not produce phenomenons such as bad connection, deviation of signal, and the non-contact electronic throttle of long service life, the mechanical system of its magnet does not contact mutually with the angular displacement sensor system that has programmable Hall element.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of non-contact electronic throttle, comprise housing, be installed in drive motor and air door in the housing, air door is installed in the housing by axle of the air door, on housing, be provided with the angular displacement sensor that is used to feed back damper positions, axle of the air door is provided with and the corresponding magnetic receiver of angular displacement sensor, be provided with magnet in the magnetic receiver, drive motor is connected with axle of the air door by reduction gears mechanism.Magnet in the magnetic receiver does not contact mutually with Hall element, and magnetic intensity changes along with the rotation of axle of the air door, the size of Hall element non-contact measurement rotating magnetic field, the exact position of feeding back air door by angular displacement sensor.
Sensor line plate that above-mentioned angular displacement sensor comprises middle cover, cover in being installed in and the Hall element that is used for non-contact measurement rotating magnetic field size, Hall element is fixed on the sensor line plate.Hall element, sensor line plate and middle cover be as angular displacement sensor, integral installation on housing, simple and compact for structure, easy installation and removal.
Above-mentioned magnet is injection-moulded on the magnetic receiver, and magnetic receiver is fixed on the axle of the air door by pin.Magnet is installed in as mold insert can avoids installing the magnet that magnet brings in the magnetic receiver and rock, improve the accuracy of angular displacement sensor feedback signal,, reduce cost the independent versatility that can also strengthen part of magnetic receiver.
Above-mentioned reduction gears mechanism is the second gear reduction unit structure, the second gear reduction unit structure comprises motor gear, intermediate gear and air door gear, motor gear is arranged on the output shaft of drive motor, intermediate gear is fixed in the housing by intermediate gear shaft, the air door gear is installed on the axle of the air door, and motor gear is meshed by intermediate gear with the air door gear.Thereby drive motor can drive axle of the air door by the second gear reduction unit structure and rotate.
Be separately installed with needle bearing and pad on the above-mentioned axle of the air door, axle of the air door is installed in the housing by needle bearing and pad, the position that housing is interior and axle of the air door is suitable is provided with the torsion spring lining, the torsion spring lining is provided with the return torsion spring, and return torsion spring one end is fixed on that the other end is fixed on the air door gear on the housing.The torsion spring lining can prevent that not only the friction of return torsion spring and housing from can also prevent the distortion of return torsion spring.
Cover in above-mentioned and be respectively equipped with motor inserted sheet and socket connector pin, enlarge the scope of sensor line plate, reduce the structure difficulty of motor inserted sheet and socket connector pin, reduce the injection moulding cost of middle cover, the motor inserted sheet is connected with drive motor, and the plug connector contact pin is connected with Hall element and drive motor respectively by the sensor line plate.
Above-mentioned drive motor is a direct current generator, and direct current generator is provided with motor cover, and drive motor is installed in the housing by motor cover.Use the motor cover location and be installed in enclosure interior, quick and easy for installation.
Above-mentioned housing top is provided with loam cake, loam cake can effectively improve the protection of diagonal displacement sensor, be separately installed with big sealing ring and small sealing ring between housing and loam cake and the middle cover, can effectively avoid dust, liquid etc. to enter enclosure interior and damage angular displacement sensor.
The mechanical system that the present invention has magnet does not contact mutually with the angular displacement sensor system that has programmable Hall element, realize the change of rotating magnetic field intensity by the change of axle of the air door angular displacement, the size of Hall element non-contact measurement rotating magnetic field, and by the different signal of angular displacement sensor generation, signal satisfies the car engine control unit by the processing of circuit and the output of amplification back of angular displacement sensor, be the required signal voltage of ECU, realize accurate adjusting damper positions.Do not have electric wearing and tearing during electronic throttle work, can not produce phenomenons such as bad connection, deviation of signal, prolong the working life of closure greatly.By the design idle adjusting screw, the machining accuracy in reduction air door and housing air channel, the installation precision of air door that reduce, saving cost at idle position.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is an outline drawing of the present invention;
Fig. 2 is the phase diagram after the present invention removes loam cake;
Fig. 3 is a mechanical system component drawings of the present invention;
Fig. 4 is the sectional view of Fig. 3;
Fig. 5 is an angular displacement sensor component drawings of the present invention;
Fig. 6 is a product component detailed drawing of the present invention;
Fig. 7 is full trrottle phase diagram of the present invention;
Fig. 8 is air door full-shut position figure of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
As Fig. 1 to shown in Figure 6ly the present invention includes housing 15, be fixed on drive motor and the axle of the air door 7 in the housing 15 and be installed in angular displacement sensor on the housing 15, what drive motor adopted is direct current generator 20, on axle of the air door 7, air door 17 can rotate in the air channel of housing 15 air door 17 by screw.Position relative with angular displacement sensor on axle of the air door 7 is fixed with magnetic receiver 5 by pin 6, and direct current generator 20 is connected with the second gear reduction unit structure, and direct current generator 20 drives axle of the air door 7 by the second gear reduction unit structure and rotates.
In magnetic receiver 5, be injected with magnet, can avoid installing rocking that magnet brings, improve the accuracy of angular displacement sensor feedback signal,, reduce cost the magnetic receiver 5 independent versatilities that can also strengthen part as mold insert.
Direct current generator 20 is equipped with motor cover 21, and motor cover 21 is fixed on housing 15 inside by nut, thereby direct current generator 20 is fixed on housing 15 inside.
The second gear reduction unit structure is made of motor gear 24, intermediate gear 23, air door gear 8, motor gear 24 is pressed on the output shaft of direct current generator 20, intermediate gear 23 rotates on intermediate gear shaft 22, and intermediate gear shaft 22 is by being pressed on the housing 15, and air door gear 8 is welded on the axle of the air door 7.Motor gear 24 is meshed by intermediate gear 23 with air door gear 8.Thereby drive motor can drive axle of the air door 7 by the second gear reduction unit structure and rotate.
Axle of the air door 7 is installed in the housing 15 by needle bearing 9 and pad 10, and pad 10 blocks the play up and down that axle of the air door 7 can prevent axle of the air door 7, improves the accuracy of angular displacement sensor feedback signal.Also be provided with rubber ring 11 on the axle of the air door 7, can effectively avoid dust, liquid etc. to enter housing 15 inside.
With axle of the air door 7 corresponding positions torsion spring lining 13 is installed also in the housing 15, return torsion spring 12 is enclosed within on the torsion spring lining 13, torsion spring lining 13 can prevent that not only the return torsion spring 12 and the friction of axle of the air door 7 from can also prevent the distortion of return torsion spring 12, and return torsion spring 12 1 ends are fixed on, and the other end is fixed on the air door gear 8 on the housing 15.
Angular displacement sensor comprises middle cover 4, is installed in the sensor line plate 2 on the middle cover 4 and is welded on Hall element 3 on the sensor line plate 2 by welding or screw, angular displacement sensor is installed on the housing 15 as a whole, simple and compact for structure, easy installation and removal.Magnet does not contact mutually with Hall element 3, and magnetic intensity changes the size of Hall element 3 non-contact testing rotating magnetic fields, the exact position of feeding back air door 17 by angular displacement sensor along with the rotation of axle of the air door 7.
On middle cover 4, be respectively equipped with motor inserted sheet 25 and socket connector pin 26, motor inserted sheet 25 is connected with direct current generator 20, the drive wire of the output line of Hall element 3 and direct current generator 20 links to each other with socket connector pin 26 by sensor line plate 2 respectively, enlarge the scope of sensor line plate 2, reduce the structure difficulty of motor inserted sheet 25 and socket connector pin 26, reduce the injection moulding cost of middle cover 4.
Adjusting screw 14 is installed on housing 15, and the installation of fine setting air door 17 reduces installation precision when idle position, reduces the machining accuracy in air door 17 and housing 15 air channels, saves cost.
During use, when the driver steps on efp, the efp position transducer is that voltage signal is passed to ECU with its displacement amount signal conversion, ECU by current operating mode of living in is analyzed with logical process after send control signal, control direct current generator 20, make direct current generator 20 drive axle of the air door 7 runnings and make air door 17 reach required aperture by the second gear reduction unit structure, magnetic intensity changes along with the rotation of axle of the air door 7, the size of Hall element 3 non-contact testing rotating magnetic fields, feed back the exact position of air door 17 by angular displacement sensor, the current air door 17 position letters that record are fed back to ECU, by the best closed loop control of feedback control realization to closure.The best aperture that electronic throttle can be determined closure according to driver's demand hope and the various running condition of car load guarantees the power character and the fuel economy of vehicle the best to reduce exhaust emissions.
As Fig. 7, Fig. 8 is two kinds of maximal work states of closure of the present invention: idling mode, air door 17 full cut-offs at this moment; WOT state, air door 17 standard-sized sheets at this moment.When idling, regulate adjusting screw 14 and can guarantee that air door 17 is closed fully under the driving of direct current generator 20, and during the WOT state, air door 17 is got back to the restriction site of housing 15 under the effect of return torsion spring 12 by air door gear 8.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (8)
1. non-contact electronic throttle, comprise housing, be installed in drive motor and air door in the housing, described air door is installed in the housing by axle of the air door, it is characterized in that, on housing (15), be provided with the angular displacement sensor that is used to feed back air door (17) position, described axle of the air door (7) is provided with and the corresponding magnetic receiver of angular displacement sensor (5), and described magnetic receiver is provided with magnet in (5), and described drive motor is connected with axle of the air door (7) by reduction gears mechanism.
2. non-contact electronic throttle according to claim 1, it is characterized in that, described angular displacement sensor comprises middle cover (4), be installed in the sensor line plate (2) on the middle cover (4) and be used for the Hall element (3) of non-contact measurement rotating magnetic field size, and described Hall element (3) is fixed on the sensor line plate (2).
3. non-contact electronic throttle according to claim 1 is characterized in that, described magnet is injection-moulded on the magnetic receiver (5), and described magnetic receiver (5) is fixed on the axle of the air door (7) by pin (6).
4. according to any described non-contact electronic throttle in the claim 1 to 3, it is characterized in that, described reduction gears mechanism is the second gear reduction unit structure, described second gear reduction unit structure comprises motor gear (24), intermediate gear (23) and air door gear (8), described motor gear (24) is arranged on the output shaft of described drive motor, described intermediate gear (23) is fixed in the housing (15) by intermediate gear shaft (22), described air door gear (8) is installed on the axle of the air door (7), and described motor gear (24) is meshed by intermediate gear (23) with air door gear (8).
5. non-contact electronic throttle according to claim 4, it is characterized in that, be separately installed with needle bearing (9) and pad (10) on the described axle of the air door (7), described axle of the air door (7) is installed in the housing (15) by described needle bearing (9) and pad (10), the position that described housing (15) is interior and axle of the air door (7) is suitable is provided with torsion spring lining (13), described torsion spring lining (13) is provided with return torsion spring (12), and described return torsion spring (12) one ends are fixed on the last the other end of housing (15) and are fixed on the air door gear (8).
6. according to claim 2, it is characterized in that, be respectively equipped with motor inserted sheet (25) and socket connector pin (26) on the described middle cover (4), described motor inserted sheet (25) is connected with described drive motor, and described plug connector contact pin is connected with described Hall element (3) and described drive motor respectively by sensor line plate (2).
7. according to claim 1,2,3 or 6 described non-contact electronic throttles, it is characterized in that, described drive motor is direct current generator (20), and described direct current generator (20) is provided with motor cover (21), and described drive motor is installed in the housing (15) by motor cover (21).
8. non-contact electronic throttle according to claim 6 is characterized in that, described housing (15) top is provided with loam cake (1), is separately installed with big sealing ring (18) and small sealing ring (19) between described housing (15) and loam cake (1) and the middle cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102476743A CN101892912A (en) | 2010-08-06 | 2010-08-06 | Non-contact electronic throttle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102476743A CN101892912A (en) | 2010-08-06 | 2010-08-06 | Non-contact electronic throttle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101892912A true CN101892912A (en) | 2010-11-24 |
Family
ID=43102226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102476743A Pending CN101892912A (en) | 2010-08-06 | 2010-08-06 | Non-contact electronic throttle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101892912A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074319A (en) * | 2010-12-31 | 2011-05-25 | 东莞市太阳线缆设备有限公司 | Automatic air door of baking oven |
| CN104454177A (en) * | 2014-12-15 | 2015-03-25 | 无锡隆盛科技股份有限公司 | Throttle valve driven by direct-current motor |
| CN104632422A (en) * | 2014-12-25 | 2015-05-20 | 四川红光汽车机电有限公司 | Sensor magnetic core and throttle valve shaft integration bidirectional limiting electronic throttle valve body |
| CN104653300A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for uniform motion of automobile throttle |
| CN104660116A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless direct-current motor for low speed and high power of automobile gearshift |
| CN104653301A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for low speed and high power of automobile throttle |
| CN104727989A (en) * | 2015-03-23 | 2015-06-24 | 凯龙高科技股份有限公司 | Electric EGR valve |
| CN104775945A (en) * | 2015-04-25 | 2015-07-15 | 无锡隆盛科技股份有限公司 | EGR (exhaust gas recirculation) valve integrating device for automobile engine |
| CN104775917A (en) * | 2015-04-25 | 2015-07-15 | 无锡隆盛科技股份有限公司 | Magnetic-resistance electronic throttle valve |
| CN105370415A (en) * | 2014-08-19 | 2016-03-02 | 重庆渝辉机械有限公司 | Electronic throttle valve |
| CN105927393A (en) * | 2016-06-01 | 2016-09-07 | 四川红光汽车机电有限公司 | Novel electronic throttle body with sector gear and throttle shaft connected |
| WO2018006317A1 (en) * | 2016-07-07 | 2018-01-11 | Volvo Construction Equipment Ab | Throttle control system for construction machine |
| CN109931865A (en) * | 2019-03-26 | 2019-06-25 | 宁波奥克斯电气股份有限公司 | The detection device and method, smoke machine of air door folding angle |
| CN113738516A (en) * | 2021-09-09 | 2021-12-03 | 芜湖力锐德电子科技有限公司 | Electric actuator for control valve of automobile exhaust system |
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| JP2008096231A (en) * | 2006-10-11 | 2008-04-24 | Hitachi Ltd | Inductance type rotation angle detector, and motor-driven throttle valve controller equipped therewith |
| US20080110435A1 (en) * | 2006-11-13 | 2008-05-15 | Oswald Baasch | Air valve and method of use |
| CN201747466U (en) * | 2010-08-06 | 2011-02-16 | 南京奥联汽车电子电器有限公司 | Non-contact electronic throttle valve |
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2010
- 2010-08-06 CN CN2010102476743A patent/CN101892912A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008096231A (en) * | 2006-10-11 | 2008-04-24 | Hitachi Ltd | Inductance type rotation angle detector, and motor-driven throttle valve controller equipped therewith |
| US20080110435A1 (en) * | 2006-11-13 | 2008-05-15 | Oswald Baasch | Air valve and method of use |
| CN201747466U (en) * | 2010-08-06 | 2011-02-16 | 南京奥联汽车电子电器有限公司 | Non-contact electronic throttle valve |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074319B (en) * | 2010-12-31 | 2013-02-27 | 东莞市太阳线缆设备有限公司 | Automatic air door of baking oven |
| CN102074319A (en) * | 2010-12-31 | 2011-05-25 | 东莞市太阳线缆设备有限公司 | Automatic air door of baking oven |
| CN104653300A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for uniform motion of automobile throttle |
| CN104660116A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless direct-current motor for low speed and high power of automobile gearshift |
| CN104653301A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for low speed and high power of automobile throttle |
| CN105370415A (en) * | 2014-08-19 | 2016-03-02 | 重庆渝辉机械有限公司 | Electronic throttle valve |
| CN104454177A (en) * | 2014-12-15 | 2015-03-25 | 无锡隆盛科技股份有限公司 | Throttle valve driven by direct-current motor |
| CN104632422A (en) * | 2014-12-25 | 2015-05-20 | 四川红光汽车机电有限公司 | Sensor magnetic core and throttle valve shaft integration bidirectional limiting electronic throttle valve body |
| CN104727989B (en) * | 2015-03-23 | 2017-07-04 | 凯龙高科技股份有限公司 | A kind of electric EGR valve |
| CN104727989A (en) * | 2015-03-23 | 2015-06-24 | 凯龙高科技股份有限公司 | Electric EGR valve |
| CN104775917A (en) * | 2015-04-25 | 2015-07-15 | 无锡隆盛科技股份有限公司 | Magnetic-resistance electronic throttle valve |
| CN104775945A (en) * | 2015-04-25 | 2015-07-15 | 无锡隆盛科技股份有限公司 | EGR (exhaust gas recirculation) valve integrating device for automobile engine |
| CN105927393A (en) * | 2016-06-01 | 2016-09-07 | 四川红光汽车机电有限公司 | Novel electronic throttle body with sector gear and throttle shaft connected |
| CN105927393B (en) * | 2016-06-01 | 2019-07-02 | 四川红光汽车机电有限公司 | A kind of electronic air throttle body that fan gear is connect with throttle plate pin |
| WO2018006317A1 (en) * | 2016-07-07 | 2018-01-11 | Volvo Construction Equipment Ab | Throttle control system for construction machine |
| CN109931865A (en) * | 2019-03-26 | 2019-06-25 | 宁波奥克斯电气股份有限公司 | The detection device and method, smoke machine of air door folding angle |
| CN113738516A (en) * | 2021-09-09 | 2021-12-03 | 芜湖力锐德电子科技有限公司 | Electric actuator for control valve of automobile exhaust system |
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Application publication date: 20101124 |